The Complete Guide to Setting Up iPhone Screen Time (2026)

Your iPhone ships with a powerful usage-management feature called Screen Time. Yet many people turn it on and never go further than occasionally glancing at their usage. Set up the core features properly and you can noticeably cut the screen time that creeps up unconsciously. Here’s how, step by step, on iOS 18.

What Screen Time Is

Screen Time is a built-in iOS feature you turn on under Settings > Screen Time. No separate app needed. It mainly offers:

• App & Website Activity: daily/weekly reports, most-used apps, pickups, and notification counts
• Downtime: blocks most apps during a chosen window, except phone and “Always Allowed” apps
• App Limits: a daily cap per app or category (games, social, etc.)
• Communication Limits / Always Allowed: who you can contact during blocks, and which apps always work
• Content & Privacy Restrictions: block adult content, restrict installs/deletes, lock settings
• Screen Time Passcode: a separate 4-digit code that prevents changing or turning off settings

1. Turn On Screen Time

Since iOS 17 the menu changed slightly. Go to Settings > Screen Time > App & Website Activity and turn this on first—reports and limits only work once it’s enabled. If you don’t see the old “Turn On Screen Time” button, this is why.

2. Create “Off” Time with Downtime

Downtime is great for clearing a whole window—like before bed or during study hours.

1. Go to Settings > Screen Time > Downtime
2. Turn on Scheduled, then choose Every Day or Customize Days
3. Set the start and end time

You’ll get a reminder five minutes before Downtime starts. One important detail: to block apps completely, you must separately turn on Block at Downtime. That option only appears once you’ve set a Screen Time passcode.

3. Set Daily Caps with App Limits

If one app eats your day, App Limits is the answer.

1. Settings > Screen Time > App Limits > Add Limit
2. Pick a category (Social, etc.) or individual app, then tap Next
3. Enter the allowed time (you can vary it by day)

If Downtime is a “timetable,” App Limits is a “daily quota.” Use both together for tighter control.

4. The Screen Time Passcode—the Most Important Step

Even with all of the above, without a passcode you (or your child) can open Settings and turn off every limit in a minute. That’s why the Screen Time passcode is essential.

In Settings > Screen Time > Use Screen Time Passcode, set a 4-digit code and register a recovery Apple ID. Crucially, make this code different from your device unlock passcode. If they’re the same, anyone who knows how to unlock the phone can undo every limit.

5. For Kids, Use Family Sharing

To manage a child’s iPhone, use Family Sharing. Add the child’s Apple ID to your family group, then set Downtime, App Limits, and Content Restrictions under Settings > Screen Time > [child’s name under Family].

The biggest advantages: you manage it remotely from the parent’s device, and you can reset the child’s Screen Time passcode from your device. Turn on “Ask to Buy” and your child’s downloads will require your approval.

Why Screen Time Matters: The Numbers in Korea

Setup can feel tedious, but the statistics make the case. According to the 2024 Smartphone Overdependence Survey by Korea’s Ministry of Science and ICT and the National Information Society Agency (NIA), the at-risk overdependence rate is 22.9% overall—and 42.6% among adolescents (ages 10–19), the highest of any group and rising for nine straight years. Even young children (ages 3–9) sit at 25.9%. Consciously managing screen time is no longer optional; it has to become a habit.

The Limits of Built-in Screen Time

Screen Time is a great starting point, but it isn’t perfect.

• A single “Ignore Limit” tap can override it, so the friction is weak for self-control.
• There are loopholes—deleting and reinstalling apps, or using in-app browsers to get around blocks.
• It’s hard to split finely by context or routine (work / study / rest).

To close these gaps, pairing it with a dedicated app helps. KeepFocus complements built-in Screen Time with stronger, harder-to-disable blocking. QuickBlock lets you reclaim focus right now, scheduled blocking covers set windows (say, weekdays 9 a.m.–5 p.m.), and a strict blocking mode prevents you from changing settings mid-block.

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If built-in Screen Time isn’t enough, use KeepFocus to block YouTube, Instagram, and more—more firmly.